Back to Basics Duct Design.

Drafting and Successful

Downstream efficiency.

Presenter : Christopher Nyul– Queensland Senior Draftsperson

13th May 2013

Back to Basics Duct design

• Manufacturing and Installation principals.

• BIM, co-ordination of services.

Presentation Agenda

Manufacturing and Installation principals.

• Parameters can be applied within the intelligent software.

• Project Design Guide (AS 4254).

• Testing.

• Pressure Class, Air Flow and System Type.

• Duct Profiles.

• Accessibility, Egress and maintenance.

• Schematics and Layouts.

• Flue Expansion.

• Hangers and Supports.

• Prefabrication.

.

Back to Basics Duct design

Back to Basics Duct design

Deflection / Leakage Testing of duct.

Back to Basics Duct design

Deflection / Leakage Testing Rig.

Back to Basics Duct design

Deflection / Leakage Testing.

• Ascertain the amount of leakage and minimise, to reduce

operating costs.

• Improve manufacturing practices to reduce leakage.

• Limit the amount of deflection.

• Ensure that bracing and beading are sufficient.

• Pressure Class,

• Air Flow

• System Type.

Back to Basics Duct design

Resizing Ductwork.

• Rectangular

• Round

• Oval

Back to Basics Duct design

Duct Profiles

Back to Basics Duct design Duct Manufacturing Machinery

Back to Basics Duct design

Fitting Elimination

What We See.

Item Information. Pattern Development.

Nest Layout.

Back to Basics Duct design

Product. Back to Basics Duct design

TDF-35 TDF-35 Cap-End

Access Panel

Back to Basics Duct design

INS Step-in TDF-35 Loose Mezz Frame

Back to Basics Duct design

Back to Basics Duct deign Access, Egress and Maintenance

Back to Basics Duct design Access, Egress and Maintenance

Access, Egress and Maintenance

What is wrong with this picture?

Back to Basics Duct deign

Fleshing out the Schematic.

Back to Basics Duct deign

Back to Basics Duct design Fleshing out the Schematic.

Efficient hanging. Back to Basics Duct design

Back to Basics Duct design Prefabrication.

Back to Basics Duct design Prefabrication From the Drawing.

Back to Basics Duct design

Prefabrication To Site.

Flue Stack Prefabrication. Back to Basics Duct design

Flue Stack Prefabrication. Back to Basics Duct design

Thermal Expansion, with Bellows. Back to Basics Duct design

∆L = LX α x ∆T

Change in length, Length of Duct,

Thermal Coefficient and Temp difference

Between outer and inner.

Expansion without Bellows. Back to Basics Duct design

Back to Basics Duct Design

The Coordination Process.

• Service Contractors provide their 3D drawings to A.E Smith.

• A.E Smith Import these services along with the Mechanical Into

Navisworks and carry out floor by floor Clash detection.

• The Clashes are then Reviewed and assigned.

• The Navisworks Model CW Clash detection Reports is then

provided back to the relevant parties for review and drawing

revisions are carried out.

• The Process will then begin again.

BIM, Co-ordination of services

Back to Basics Duct Design

Drawing Revision

Drawing Revision

BIM 3D (Coordination) Workflow.

Back to Basics Duct design

End Result.

Back to Basics Duct Design

Clash Detection Report.

Back to Basics Duct Design

Revit is BIM ???.

15th May 2013

THANK YOU

& Question Time